Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    29-06-2024 01:01

General

  • Target

    a444a64f8739781bf0113e5e565e838da4082dddece109ae31cc9f72f0cb5a8d.dll

  • Size

    120KB

  • MD5

    9ef7044c48cbc23ec9de7ad3c9ff7018

  • SHA1

    ba12f3db93a25ef85bb3b4a73f6f5ec480472d41

  • SHA256

    a444a64f8739781bf0113e5e565e838da4082dddece109ae31cc9f72f0cb5a8d

  • SHA512

    dabec67e818929805a155b7824d855e707d25cacee24d7868b25be8a53b5ae4ba2c04ea720f1aff576b1db6443e898a84a407f1790c52651ad0afaa6a8cb9134

  • SSDEEP

    3072:zB1l3evcfobtq8IW1M66FmNxCSvjgu6nKaff:d1luvs2qNrkCSvjLKB

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

Signatures

  • Modifies firewall policy service 3 TTPs 6 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 26 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 17 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1068
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1168
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1192
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\a444a64f8739781bf0113e5e565e838da4082dddece109ae31cc9f72f0cb5a8d.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3032
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\a444a64f8739781bf0113e5e565e838da4082dddece109ae31cc9f72f0cb5a8d.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:3040
              • C:\Users\Admin\AppData\Local\Temp\f761fd0.exe
                C:\Users\Admin\AppData\Local\Temp\f761fd0.exe
                4⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Executes dropped EXE
                • Windows security modification
                • Checks whether UAC is enabled
                • Enumerates connected drives
                • Drops file in Windows directory
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:2556
              • C:\Users\Admin\AppData\Local\Temp\f762166.exe
                C:\Users\Admin\AppData\Local\Temp\f762166.exe
                4⤵
                • Executes dropped EXE
                PID:2376
              • C:\Users\Admin\AppData\Local\Temp\f763c74.exe
                C:\Users\Admin\AppData\Local\Temp\f763c74.exe
                4⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Executes dropped EXE
                • Windows security modification
                • Checks whether UAC is enabled
                • Enumerates connected drives
                • Drops file in Windows directory
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:868
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1596

          Network

          MITRE ATT&CK Matrix ATT&CK v13

          Persistence

          Create or Modify System Process

          1
          T1543

          Windows Service

          1
          T1543.003

          Privilege Escalation

          Create or Modify System Process

          1
          T1543

          Windows Service

          1
          T1543.003

          Abuse Elevation Control Mechanism

          1
          T1548

          Bypass User Account Control

          1
          T1548.002

          Defense Evasion

          Modify Registry

          5
          T1112

          Impair Defenses

          4
          T1562

          Disable or Modify Tools

          3
          T1562.001

          Disable or Modify System Firewall

          1
          T1562.004

          Abuse Elevation Control Mechanism

          1
          T1548

          Bypass User Account Control

          1
          T1548.002

          Discovery

          System Information Discovery

          2
          T1082

          Query Registry

          1
          T1012

          Peripheral Device Discovery

          1
          T1120

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SYSTEM.INI
            Filesize

            257B

            MD5

            b09f70e2ff6c77de85b55095e6ae3eee

            SHA1

            16e1f03eb19bc605e59719d5996402cbf86c4ee1

            SHA256

            72729a4f5cacc1f8a47efbd489afecf55cd2cdc576a6a368eba184bcf4420e8a

            SHA512

            2fe2a0fb54b2a100bcec6da7a708686ca5929754ba53ec1ecfc469b61340e1e6a2b8522a133936603fcd6566e4a9889e16f518945ef3a843ae3ef41f366b19a8

          • \Users\Admin\AppData\Local\Temp\f761fd0.exe
            Filesize

            97KB

            MD5

            f8ce943a63132ba00860d9756e7a64c3

            SHA1

            7c125a935af64429f7ce334147dbabd06da15082

            SHA256

            6ab27171224a781f4baf238794c02b55c517c9c4e7f0a842e1eb6c0fd5530f9a

            SHA512

            a929d6cd8370a26c9636b53ee228046440bee9089586d3129d4acad1744e249efc6382e03b0e3faa71c20e9517ca7d23960e2295d687502578e86d41a2ffc6d7

          • memory/868-201-0x0000000000910000-0x00000000019CA000-memory.dmp
            Filesize

            16.7MB

          • memory/868-160-0x0000000000910000-0x00000000019CA000-memory.dmp
            Filesize

            16.7MB

          • memory/868-200-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/868-101-0x0000000000220000-0x0000000000222000-memory.dmp
            Filesize

            8KB

          • memory/868-98-0x0000000000230000-0x0000000000231000-memory.dmp
            Filesize

            4KB

          • memory/868-99-0x0000000000220000-0x0000000000222000-memory.dmp
            Filesize

            8KB

          • memory/868-80-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/1068-28-0x0000000000390000-0x0000000000392000-memory.dmp
            Filesize

            8KB

          • memory/2376-173-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2376-102-0x0000000000260000-0x0000000000262000-memory.dmp
            Filesize

            8KB

          • memory/2376-94-0x00000000002B0000-0x00000000002B1000-memory.dmp
            Filesize

            4KB

          • memory/2376-100-0x0000000000260000-0x0000000000262000-memory.dmp
            Filesize

            8KB

          • memory/2556-62-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-17-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-46-0x0000000001830000-0x0000000001831000-memory.dmp
            Filesize

            4KB

          • memory/2556-10-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2556-12-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-14-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-56-0x0000000001820000-0x0000000001822000-memory.dmp
            Filesize

            8KB

          • memory/2556-18-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-16-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-22-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-19-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-60-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-146-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-61-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-63-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-65-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-66-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-67-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-145-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2556-116-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-81-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-82-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-84-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-105-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-48-0x0000000001820000-0x0000000001822000-memory.dmp
            Filesize

            8KB

          • memory/2556-21-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-15-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-20-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/2556-104-0x00000000005D0000-0x000000000168A000-memory.dmp
            Filesize

            16.7MB

          • memory/3040-55-0x00000000001E0000-0x00000000001E2000-memory.dmp
            Filesize

            8KB

          • memory/3040-58-0x00000000001E0000-0x00000000001E2000-memory.dmp
            Filesize

            8KB

          • memory/3040-57-0x0000000000200000-0x0000000000212000-memory.dmp
            Filesize

            72KB

          • memory/3040-79-0x00000000001B0000-0x00000000001B2000-memory.dmp
            Filesize

            8KB

          • memory/3040-1-0x0000000010000000-0x0000000010020000-memory.dmp
            Filesize

            128KB

          • memory/3040-35-0x00000000001E0000-0x00000000001E2000-memory.dmp
            Filesize

            8KB

          • memory/3040-36-0x00000000001F0000-0x00000000001F1000-memory.dmp
            Filesize

            4KB

          • memory/3040-9-0x00000000001B0000-0x00000000001C2000-memory.dmp
            Filesize

            72KB

          • memory/3040-45-0x00000000001F0000-0x00000000001F1000-memory.dmp
            Filesize

            4KB

          • memory/3040-11-0x00000000001B0000-0x00000000001C2000-memory.dmp
            Filesize

            72KB